To save up to 60% on this flight, we recommend booking at least 40 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Phoenix-Mesa Gateway Airport to Chicago O'Hare Intl Airport from $200 1-2 weeks out and tickets from $316 for flights departing within the next 72 hours.
April can be a great time to fly to Chicago O'Hare Intl Airport from Phoenix-Mesa Gateway Airport with a flight ticket averaging about $214. Cheapflights users have found deals in the month of April for as cheap as $66. The most expensive prices can be found in the month of June.
When flying from Phoenix-Mesa Gateway Airport to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.